Glazing-machine



.s.f\A. Kos AND w. YAEGER.

GLAZING MACHINE. APPucATlo'N 'man JAN. ao. 1919.

Patented June 8, 1920.

UNITED STA-ras OFFICE.

STEPHEN A. 'xosr AND WILLIAM YAEe'in, Orl-ayuno, NEW YORK, AssIeNORs-aoTHE QUALITY BRANDS COMPANY, or cLnvaLANn, OHIO, A CORPORATION OF OHIO.

GLAZING-MACHINE.

. l Specification of Letters Patent. Patented J une 8, 1920.

` Application led January 30, 1919. Serial No. 273,988.

constructed in the form of a tapering fairest' To all whom t mayconcern.'

nel and detachably connected at itsla-rge Be it known that we, STEriIENA. KosT 'fand WILLIAM YAEGER, citizens ofthe United States, andresidents of Buialo, in thel county of Erieand iState of New York, havelinvented new and useful Improvements in Glazing-Machines, of which thefollowing is a specification.

This invention relates to a glazing machine which is designed to apply aliquid glazing cement or paste to the joints between panes` of glass andthe sashes or frames of green houses on which the same are ,mounted forthe purpose of producing a ti' ht joint between the same.n

. achines for this purpose, as heretofore constructed, required the useof both hands for their operation which made it diiicult to apply theglazing material to the frames or sashes and also reduced the amount ofwork *f which a man can do particularly when operating upon the roof ofa green house` which necessitated holding on to stationary parts inorder to enable the operator to keep his placelwhile applying theglazing material. f

It is the object of this invention to provide aglazing machine which isautomatic in its operation of discharging the material from the supplymagazine -and'which can be controlled by the use of a single hand forapplying the glazing material, leaving the other hand free to hold on tothe support for insuring the safety of the operator.

In the accompanying drawings: Figure 1 is a longitudinal section of our.improved in' the form of a cylinder, as shown Figs.

glazing machine. Fig. 2 is a side elevation of the same. Figs. 3 and 4are cross sections taken on the correspondingly num-v bered lines inFig. 1. Fig. 5 isa cross section taken online 5 5, Fig. 2.

Similarcharacters of 'reference refer to like parts throughoutthe'several views. i

'6 represents the magazine, tank or barrel of the glazing machine whichis adapted to receive in, its front end the charge f glazing materialwhich is to. be applied vto the frames or sashes and the panes tif-.gagreenhouse o r similar` structure, this maga- :zine being preferably."vconstructed l.ofnietal 1, 2 and- 4. j

A fits front end this barrel iis'. provided with a cap or head 7 whichispreferably the valvebody will permit thefglazing ma- .vided with anoblong valve stem 18 "w glazing material to the sash and panes the 'onto the sash or other availableend with the front end of the barrel bymeans of a screw joint 8 as shown in Fig. `1, or by any other suitablemeans, sothat`upon removing this front cap a charge of glazing materialmay be introduced into thebarrel preparatory to depositing the samewhere required. The discharge of this material from the barrel iscontrolled by means of a valve which may be variously constructed but inthe form shown in the drawings, as an example, the same comprises a body9 having a passage 10 therethrough the 'inlet end of which is connectedlby means ofga screw joint with the outlet of the funnel-v shaped cap 7while the discharge end of this passage is connected with a nozzlelll bywhich the glazing material is deposited# form engages with acorrespondingly shaped 7- 5 valve seat 12 which intersectsv thepassage4=l provided with a diametri'calf port or passage? 14 which uponturning the plug so that this 'j port is arranged crosswiseofthe'va'lvejbody, as shown inFigs. lfand 5, willclozse the Valve andprevent the discharge offglazing material but which upon -fbeing .turnedsolj;v that this port registers with the-passage of terial to escapefrom the supplyfbarrel or magazine This valve plug 'is lieldtightlyagainst `its seat by means of a screw shank 16 arranged at its smallend, a washer 15 applied to this screw shank and bearing-"350 againstthe adjacent end of the` valve bodyand a screw nut 17 applied to'thisvscrew shank and engaging with the outerV the washer, as shown in Fig.5. At posite or large end the valve plug by the valve plug 'may beturnedl 1t opened or closed position. -1-5. When using this devlce inapplyi the'.

operator grasps the barrel by one-handfand in order to leave the otherhand free to'hold 5' l .supirervqf the building, an operating mechanismis] provided for'the valve which can be rcon- .rolled linger of thesamehadwlhichf` voldsfth'e supply barrel. vv`'lfhe valve perat ing mechanismhaving this capacity may fas be' variously constructed but that which isfsl'civn in the drawings is suitable and.l .Qly ing to its simplicity ofconstruction 'it' is preferred. As shown in Figs. 2 and5 this ,5preferred form of valve'operating mechanism comprises a segmental gear19 which is secured'to the valve stem. by providing the hub of this gearwith an oblong opening which receives the stem 18 of the va1ve, and

through an opening in the stem adjacent to the outer side of the gear.Meshing with this gear segment is a longitudinally recip- 'rocating gearrack 22 guided on a bracket cap 7 and provided. with an outerlongitudinal guide iiange 23 engaging with the outer longitudinal edgeof the gear rack.

The gearrack is provided with a longitudi- 2o nal slot 24 which receivesa retaining screw 25 'secured to the adjacent part of the supportingbracket, as shown in Figs. 2 vand 5. 26 represents a. longitudinaloperating rod which is arranged lengthwise Von one -slde of thelower'barrel cap and connected at its frontend with. the rear end of therack' v while its rear part is guided in a lug 29 projecting laterallyfrom the front barrel cap and its rear end terminates in a finger pieceor handle 27. 4Surrounding this operating rod is a helical spring 28which bearsf atits front endagainst the rear end of the. gear rack whileits rear end bears' against the guide lug 29. This spring when freeconstantly tends to move the gear rack for- Wardly Yand turn the gearsegment and the valve plug in the direction for closing lthe valve byshifting the port of the ..p 1ug in eitherdirection whenthe latter is` 1.opened or closed by engagement of the front 'and rear ends of the guideslot 24 with .the f screw 25 whichlatter operates as a stop for :thispurpose.

one handen@ pull-ing with one finger of the discharge the glazingmaterial from the cyl- '.mder "and Aalso direct .the discharge nozzlealong the'v surface intended to receive the 'glazing material. Theother-.hand ofthe "per t9r is therefore left to hold .on to able supportfor insuring-.his safety performing 'the 'glazin operation, ysgablingthe o mrtg o 1 yand wit outlabilit of falla cotter` pin 20 or similardevice 'passlng Awhich slides lengthwise therem and which 21 which, ispreferably formed on the frontV valve plu out of register with thepassage Vsame hand-E -bekwardly onv the handle 27 to b y means of avscrew joint, as shown in the operator` 1s able to open 'the' valveandpressor screw 44Y which is work much preferably rearwardiingerpressure'en'f'the. operating. the spring".2 6 automatically' mores`the 'rack forwardl'y'sef'asrto' c'lo'se the disj ge valve preventtheescape pf fu rther material. By vthis means the delivery of' materialfrom the supply barrel may be "accurately controlled so that ynovv morematerial than necessary vis deposited, thereby avoiding waste andeffecting greater economy in the cost of glazing'as com ared' with themethods heretofore employe The glazing material is discharged from .thesupply'barrel by a plunger or piston may be variouslyconstructedbutwhich in the form shown in the drawings' comprises a diskshaped body 30 of cork or similar material and two metal retaining disks31, 32v applied to the front and rear 'sides of the '80 cork body andconnected with each other by ymeans of a tubular hub of sleeve 33passlng through corresponding openingsin the central parts of the corkand retaining disks and yconnected at its, lower end by means of 8'5 ascrew joint withwthe front disk and provided at its rear end with anannular flange 34 bearing against the rear side of the rear disk, asshown'in Fig. 1;` i

Preparatory to filling. the 'front part of the supply barreliwithlglazing material the plunger or'piston is moved into its rearmost.position within the barrel, and vupon moving this plunger forwardly thematerial is discharged from. the barrel when the -valve is open. Themeans whereby the plunger is operated are so constructed that theyoperate to shift the plunger. forwaillfgw automatically when the valvevis ope .y These means in their preferred form comprise. a comparativelystiff helical evacuating spring 35 which is arranged within-the rearpart of the supply barrel and 'engages its front end with the rearretainingdlSk f to which the foremost convolution of the spring ispreferably secured b `means of a. clip .36 as shown in Fig. 1. he rearend *of this spring engages with a follower 37 which-1s movablelengthwise in the rear part of the barrel, the rearmost .convolu- 110tion of this Aspring being preferably secured to the follower by meansof a clip 38. At Bytakln'g .hold of the supply'barrel with is providedwith an internally screwthreaded opening ,40 which receives a comtubularform. A connection-1s eiecte between the fronter inner Aend of'thiscompresser screw- 4and/the follower which is soconstructed that theseAparts are compelled to move together but.' the compressor screw is toindependently ofthe follower. This con-iA nectlen in its preferred form,as shown in, Fig'. 1-, com rises an annular flange 41 arrangedl ont einner end ogthe comp4 .su

referabl screw and bearing against the rear side of.

which preferably has the form of a wheell secured to the rear end of thecompressor screw externally of the supply barrel andy formingpractically a part of this screw. Upon turning the compressor screw inone direction or the other the follower is caused to move forwardly orbackwardly within the pump. barrel.l 4

Extending lengthwise through the compressor screw, the follower, theevacuating' spring and the tubular hub of the piston is aretractings'crew 46 which is provided at its frontend with ahead 51bearing against the front side of the front plunger disk while its rearend, which extends beyond the rear end of the compressor screw,v isprovided with a handle 47 for turning the same. In rear of thecompressor kscrew is arranged a screw nut which is adaptedl to beengaged with or'g disengaged from the external screw thread'A of theretracting screw which screw nutfis so mounted that the same is movableback and forth with the compressor screw 44 and the handle 45. Thislscrew nut in its preferred form is split into two sections 48, 48 whichare adapted to engage with opposite sides of the thread of the4retracting screw and are pivotally connected on one side with eachother. and with the handle of the compressor screw by means of a pintle49. The opposite ends ofthe screw vnut sections are adapted to beinterlocked with each other while their internal thread sections areengaged with the thread of the retracted screw. This connection may beeffected ina variety of ways that shown in the drawings being merely anexample of one suitable -for this purpose and consisting of a screw nutsections-'are in engagement there` with so thatV this retractln screwmoves rearwardly .relativelfit to t e compressor screw togeIwith*thenplunger' and causes the evacuatiil spring to be compressedbetween thefol owe'r'V and the plunger. While the plunger lis in thisposition and the levacuating spring isf-flexed the operator removes thefrontl capfrom the barrel and introduces a charge o glazing materialinto 'lie may employ one fin er of thehand 'and practically the entirecharge of glazing 1 the latter after which the front' cap to- ',getherwith the valve mechanism mounted thereon is reapplied to the barrel. Thelocking pin50 may, now be moved from the lscrew nut sections and thellatter are swung apart so that they are' disengagedA from thel threadsof the' retracting screw. -This releases the retracting screw and theplunger and permits the latter tobe pushed forwardly by the evacuatingspring which latterA is now free to operate if thev valve is open, vbutif at this time the valve is closed the pressure of the plun er againstthe glazing material will not e able tov discharge the same from thebarrel. While in this condition the operator may take the barrel in onehand and pass the delivery nozzle over the surfaces intended to receivethe glazing material and at the same time which grasps the'barrel oroperating the handle of the valve operating mechanism for operating thevalve so that thematerial will be discharged from the nozzleautomatically. by the resilience of the evacuating spring. When theplunger has been movedforwardly to such an'extent that the tension ofthe evacuating l. spring has been exhausted and the plunger ,has not yetreached the front end of the barrel so that still a quantity of theglazing material is contained therein this spring can loe-again placedunder tension for continuing its'automatic operation when the valve isopened by turning the compressor screw forwardly through the medium dfthe handle 45 whereby the follower is again advancedrelatively tov theplunger and the evacuating spring is again compressed between the latterand the fol- 105 lower, this position being indicated in Fig.

1. The automatic discharge of the glazing material from the barrel willynow be resumed through the expansion of the evacuating sp'rin theinstant that the valve is. 110 opened in t e same manner in which thiswas effected when the plunger and the -follower were in their rearmostposition.

It will thus be apparent that the spring can by this means be repeatedlyplaced un- 115 der compression step by step from itsrearmost position inthe barrel toward the front end of the 'same until` the plunger. hasreached its foremost position in thebarrel\\gl 20 material has beendischarged automatically from the barreLj e 4 Owing'ito thesimplicityzofconstruction Aof this glazing machine and.' the ease with 'f which thesame mayglge operated by the use ofone hand of a peis'c'illdoingv thework, a much greater-amount of .glazing can be accomplishedwithin agiven time than has been possible by the use fof devices hereto.-

fore used. and at the same time insuring the safetyy "of the operatorand effecting' a con` -siderable economy in the'use of glazing material.

We claim as our invention: l; A glazingmachine comprising a barreladapted to contain a charge of glazing -material and having an outlet atits front end, a plunger movable lengthwise in said barrel, alspringhearing against said plun-- ger and adapted to move the latterforwardly, means for putting said spring under tension and means forpositively-return- `ing said plunger.

2. Aglazing machine comprising a barrel adapted to contain a charge ofglazing material and having an outlet at its front.

end, and a head atits rear end which is provided with a screw threadopening, a plunger movable lengthwise in said barrel, a spring bearingat its front end against said plunger, a follower bearing against therear end of said spring, and a compressor screw engaging.,with saidfollower and working n *in said threaded opening. Y l

3. A glazing machine comprising a barrel adapted to contain a charge ofglazing material and having an outlet' at its front lend, and a head atits rear end which is provided with a screw thread opening, a 304plunger movable lengthwise in said barrel, a' sprmg bearing at its frontend against said plunger, a follower bearing against the Y rearend ofsaid spring, a compressor screw working 1n sald opening and engagingwith fio - plunger movable lengthwise in said barrel,

a spring bearing at its` front end against ceiving said retractingscrew.

-5. A glazing machine comprising a barrel adapted to contain a charge ofglazing material "and having an outlet at its front end and a head atits rear endwhich is provided with a screw thread opening, a plunger'mowable lengthwise in said barrel, a spring bear ing at the front endagainst said plunger, la follower bearing against the rear end of saidspring, a hollow compressor screw which works in said opening and havingLa rotatable connection with said follower, a retracting screw arrangedin the hollow screw and having "a rotatable connection with saidplunger, and a screw nut mounted on saidhollow shaft and receiving saidretracting screw. i n

6. A glazing machine comprising a barrel adapted to contain a charge ofglazing material and having an outlet `at its front end, anda head atits-rear end which is provided with a screw thread opening, a plun-I germovable lengthwise in said barrel, a spring bearing at its front endagainst said plunger, a follower bearing against the rear' end of saidspring, a hollow compressor screw which works in said opening and isconnected with said follower, "a retracting screw arranged within thehollow screw and connected with said plunger, and a screw nut mounted onsaid hollowserew and di-A vided into sectionsv which are adapted to beengaged with and disengaged from the threads of said retracting screw.

' .STEPHEN A. KOS-T.

WILLIAM YAEGER

